20892080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23741}}^1$

素因数の和:23765

約数の個数: 40

約数和(自身を含む): 52992144

約数和(自身を除く): 32100064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23741, 47482, 94964, 118705, 189928, 237410, 261151, 379856, 474820, 522302, 949640, 1044604, 1305755, 1899280, 2089208, 2611510, 4178416, 5223020, 10446040, 20892080]

約数ペア:

[(1, 20892080), (2, 10446040), (4, 5223020), (5, 4178416), (8, 2611510), (10, 2089208), (11, 1899280), (16, 1305755), (20, 1044604), (22, 949640), (40, 522302), (44, 474820), (55, 379856), (80, 261151), (88, 237410), (110, 189928), (176, 118705), (220, 94964), (440, 47482), (880, 23741)]